First data release of the SWAG-X ASKAP Survey

January 12th, 2022

The first data release for the Survey with ASKAP of GAMA-09+X-ray (SWAG-X) is now available. This data release comprises the first half of the full survey data, taken at 888 and 1296 MHz.

SWAG-X was initiated as a complementary ASKAP survey to the eROSITA X-Ray and Anglo-Australian Telescope spectroscopic observations of GAMA-09 field, to contribute to studies of cosmology and galaxy formation and evolution.

The full SWAG-X sensitivity will be achieved after 16 hours of integration at 888 and 1296 MHz at full spectral resolution, covering the same region as eROSITA Final Equatorial-Depth Survey Survey (eFEDS), see image below. In this first release, there are 12 ASKAP fields available, 6 tiles of 8 hours of integration in each band.

The released data can be accessed in CASDA searching under the project code “AS112”. Additional data products including combined continuum mosaics of the SWAG-X tiles and full field catalogues are being completed. The┬árelease of the second half of SWAG-X┬ádata is expected later this year.

A description paper of SWAG-X is in progress (Moss et al. in prep). For questions about SWAG-X please contact Vanessa Moss (SWAG-X lead, CSIRO Head of ASKAP Science Operations). For questions on how to access SWAG-X data please contact Minh Huynh (CASDA lead).

SWAG-X was made possible by a collaboration agreement between eROSITA_DE and Astronomy Australia Limited, in conjunction with CSIRO, Australia’s national science agency. More information on the release has also been published by Astronomy Australia Limited.



Mosaic of ASKAP images of the SWAG-X field at 888 MHz, with the field coverage of eFEDS and GAMA-09 also marked. The small circles mark each individual ASKAP beam (colour-coded by beam number) and total field-of-view. Image credit: V. Moss/E.Lenc/CSIRO.